From 96b1f1fd261109524f6a804bc0a7b24ea4e3d772 Mon Sep 17 00:00:00 2001
From: William Lallemand <wlallemand@haproxy.com>
Date: Fri, 9 May 2025 19:09:12 +0200
Subject: [PATCH] MINOR: tools: ha_freearray() frees an array of string

ha_freearray() is a new function which free() an array of strings
terminated by a NULL entry.

The pointer to the array will be free and set to NULL.
---
 include/haproxy/tools.h |  2 ++
 src/tools.c             | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/haproxy/tools.h b/include/haproxy/tools.h
index 45e0ff994..abb8f736d 100644
--- a/include/haproxy/tools.h
+++ b/include/haproxy/tools.h
@@ -1390,4 +1390,6 @@ static inline const char *errname(int err_num, char **out)
 
 int path_base(const char *path, const char *base, char *dst, char **err);
 
+void ha_freearray(char ***array);
+
 #endif /* _HAPROXY_TOOLS_H */
diff --git a/src/tools.c b/src/tools.c
index 313396823..97b8d65b4 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -7318,6 +7318,22 @@ out:
 	return err_code;
 }
 
+/*
+ * free() an array of strings terminated by a NULL entry
+ * set the pointer to NULL
+ */
+void ha_freearray(char ***array)
+{
+	int i;
+	char **r = *array;
+
+	for (i = 0; r && r[i]; i++) {
+		free(r[i]);
+		r[i] = NULL;
+	}
+	*array = NULL;
+}
+
 /*
  * Local variables:
  *  c-indent-level: 8